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    Checkpoint

                     A.  Tick ( ) the correct option.

                        1.  Each computer in a network is called a ..........................

                           a.  Node                                         b.  Device

                           c.  Unit                                         d.  Attachment

                        2.  A computer network that spans across a city can be called a ..........................
                           a.  LAN                                          b.  WAN

                           c.  MAN                                          d.  CAN

                        3.  In a client-server network, what are the computers that request services from the server called?

                           a.  Servers                                      b.  Clients

                           c.  Routers                                      d.  Switches

                        4.  In which topology all nodes are connected in a circular path?
                           a.  Mesh                                         b.  Star

                           c.  Bus                                          d.  Ring

                        5.  Which device in a network receives data from another device?

                           a.  Sender                                        b.  Transmission medium

                           c.  Receiver                                     d.  Protocol

                     B.  Fill in the blanks using the words given below:

                                                  Hints

                                                        Protocol, Firewalls, Mesh, Peer-to-Peer

                        1.  ...................... act as a barrier between a trusted internal network and untrusted external networks.
                        2.  ......................... network of two or more computers that uses the same type of program to share the
                           data.

                        3.  A .........................  is set of standard rules used for communication.

                        4.  In ......................... topology, every node is connected to each other node.

                     C.  Write ‘T’ for true and ‘F’ for false.

                        1.  Encryption is the process of converting data into a code to prevent unauthorised
                           access.                                                                           .........................

                        2.  WAN network consists of two or more local area networks together.                .........................

                                                                                Introduction to Computer Network         15

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